Are they from fmu? Also, you can get flashing icon on opk’s without actually going on to ovulate or can have 2 peaks in hormones and ovulate later in your cycle than expected so may not be as many days post ovulation than you expect.
@hellotoyellow it can take up to three days for hcg to double, I'd try not to worry too much. You could've implanted late or ovulated later than last time which is why they're not as dark. Fx they get darker soon for you
Unfortunately started bleeding (bright red) today so I think it's all over. Thank you so much for your support - and as an aside, if anyone ever finds this thread while trawling for faint line pictures as I did, good luck!